单项选择题

Questions 17—20 are based on the following passage about the tests of airliner before it goes into service You now have 20 seconds to read Questions 17—20. For what purpose does the pilot shut off all the engines

A．To find out exactly what happens.
B．To save fuel.
C．To fly more slowly.
D．To keep balance.

<上一题目录下一题>

热门试题

单项选择题

单项选择题

Questions 17—20 are based on the following passage about the tests of airliner before it goes into service You now have 20 seconds to read Questions 17—20. For what purpose does the pilot shut off all the engines 您的浏览器不支持 audio 元素。